absurd, bold, brave, courageous, careful, careless, clever, wise, foolish, silly, stupid, good, nice, kind, thoughtful, considerate, greedy, generous, honest, modest, polite, rude, cruel, selfish, lazy, wicked, wrong。如：
Experts say walking is one of the best ways for a person to stay healthy.
It’s clever of you to have invented such a device.
be said / reported / thought / believed / known / supposed + to do sth.
afford, arrange, attempt, claim, desire, determine, expect, fail, guarantee, endeavor, intend, pledge, pretend, resolve, request, swear, tend, venture。如：
Even though the children pretended to be asleep, the nurses were not deceived when they came into the room.
(1)被修饰的名词前有序数词、形容词最高级或next, last, only, not a, the, very等限定词时，该名词用不定式做定语。如：the first woman to set foot on the moon 第一个登上月球的女性
tendency to do→tend to do, decision to do→decide to do
This book is an attempt to help you use English and recognize how it is used.
ambition to do “干……的雄心”→be ambitious to do“有雄心干……”
curiosity to do “对……的好奇心”→be curious to do“对……好奇”
ability to do“做……的能力”→able to do“有能力做……”
According to Darwin, random changes that enhance a species’ ability to survive are naturally selected and passed on to succeeding generation.
way, method, reason, time, place, chance, occasion, opportunity, evidence, power, right, movement, drive (运动)，effort等。如：I worked so late in the office last night that I hardly had time to catch the last bus.
We appreciate your efforts to bring about a comprehensive solution to the existing problem.
(5)不定代词something, nothing, little, much, a lot习惯上用不定式做定语。如：
Though we have made great progress, there is still much to be improved.
(1)in order to(do), so as to(do)结构引导目的状语，so as to不能置于句首。如：
(2)so…as to, such…as to, enough…to, too…to结构做程度状语。如：
The solution works only for couples who are self-employed, don’t have small children and get along well enough to spend most of their time together.
The vocabulary and grammatical differences between British and American English are so trivial and few as hardly to be noticed.
常见的不定式动词有find, hear, see, be told, form, give, make, produce等。如：
Greatly agitated, I rushed to the apartment and tried the door, only to find it locked.
(4)not/never too… to, too… not to, but/only too…to, too ready/eager/apt/inclined to 表示肯定意义。如：
I am only too pleased to hear from you further. 能再听到你的消息，我太高兴了。